Joe Robe writes: > Hi Rooters, > > is there any class in root which generates an unique ID, like the windoze CLASSID generator ?? > > If not, any idea how I can create an Int_t which is really unique ? You might want to take a look at "uuidgen" which comes with e2fsprogs package (e2fs = Linux's ext2 filesystem). It claims: The uuidgen program creates a new universally unique iden tifier (UUID) using the libuuid(3) library. The new UUID can reasonably be considered unique among all UUIDs cre ated on the local system, and among UUIDs created on other systems in the past and in the future. There are two types of UUID's which uuidgen can generate: time-based UUID's and random-based UUID's. By default uuidgen will generate a random-based UUID if a high-qual ity random number generator is present. Otherwise, it will chose a time-based UUID. Note the use of "reasonably". But, depending on what you actually want the UUID for, it may be enough. -Brett.
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